“致命错误：调用未定义函数”错误

Question

The following error :

  Fatal error: Call to undefined function add() in E:\xampp\htdocs\paperblog\Admin\AddNewPost.php on line 18

line 18 :

 $msg=add($title,$subtitle,$details,$_FILES['_postImage']);

The whole codes ( HTML , PHP )are in the following lines.

I've 4 files:

1. The AddNewPost.php file is the main file has the HTML code.

   • Has PHP code :

     <?php include_once("..\\DB.php"); include_once("..\\Classes\\post.php"); $title=""; $subtitle=""; $details=""; $msg=""; if(isset($_POST['_PostSubmit'])) { $title=$_POST['_PostTitle']; $subtitle=$_POST['_PostSubTtile']; $details=$_POST['_PostDetails']; if( !empty($title)||!empty($subtitle)||!empty($details) ) { $msg=add($title,$subtitle,$details,$_FILES['_postImage']); } else $msg=" The post is empty "; } include_once("Header.php"); ?> 

   • And HTML :

     <form action="AddNewPost.php" method="post" id="cmntfrm" enctype= "multipart/form-data"> <P align="center" style="color:#F00"><?=$msg?></P> <p>&nbsp; </p> <table width="600" border="0" align="center"> <img src="../images/addNewPost.png"/> <br /> <br /> <tr> <td width="131">Post Title <h8 style="color:#F00">*</h8>:</td> <td width="443"><input name="_PostTitle" type="text" /></td> </tr> <tr> <td>Post Sub Title <h8 style="color:#F00">*</h8>:</td> <td><input name="_PostSubTtile" type="text" /></td> </tr> <tr> <td>Post Details :</td> <td><textarea name="_PostDetails" cols="32" rows="7">&nbsp;</textarea></td> </tr> <tr> <td>Post Image :</td> <td><input name="_postImage" type="file"/></td> </tr> <tr> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <tr> <td></td> <td><input name="_PostSubmit" type="submit" value="Save" id="submit" /></td> </tr> </table> <center> <img src="../Post_Imges/a.jpg" height="420" width="460" /> </center> 

---

2. The post.php file which has functions of the post form where is in the classes folder. It Has PHP code:

     <?php include_once("../DB.php"); class post{ var $Post_ID; var $title,$subtitle,$postdetail,$Post_Imgs; var $pmonth ,$pyear ,$pday; function add($title,$subtitle,$postdetail,$file){ $query=" insert into post(Title,SubTitle,PostDetails,PDay,PMonth,PYear) values('$title,'$subtitle','$postdetail'".date("d").",".date("m").",".date("Y").")"; $this->Post_ID=$this->GetLastPostId(); $msg=test("Add",$query); $msg.="<br/>".$this->uploadImage($file); return $msg; } function GetLastPostId(){ $query="select Max(Post_ID) from Post"; $result=mysql_query($query); $row=mysql_fetch_row($result); return $row[0]; } function uploadImage($file){ uploadFile("Post_Imges\\$Post_ID.jpg",$file); } } ?> 

---

3.The DB.php file which has some function for DB. It has :

     <?php
        include_once("functions.php");

                    mysql_connect("localhost","root",""); 
                    mysql_select_db("paperbloge");

                    function test($test ,$query){

                    mysql_query($query);
                    if(!empty(mysql_errno()))
                                                  return "Post ".$test." Successfully" ;
                                       else
                                                  return "Error".mysql_errno().":".mysql_error();


                }


?>

---

4. Finaly, functions.php file which has uploadfile function.

     function uploadFile($folderPathFileName,$file){ if (!empty($file['tmp_name'])){ move_uploaded_file($file['tmp_name'],$_SERVER['DOCUMENT_ROOT']."\\paperblog\\ ".$folderFileName); $msg.="<br/> Image uploaded Successfully"; } else $msg= "Image File too large or No Image File"; return $msg; } ?> 

---

Thats the whole codes that i've .

Does anyone know what is wrong here that cause this problem?

Thanks

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Ya it's working , But have some errors again . Thanks for your helping .

Answer 1

add is part of the class post

Change your line to;

$objPost = new post();
$msg = $objPost->add($title,$subtitle,$details,$_FILES['_postImage']);

Answer 2

add() is not a function. It is a method of a class called "post". That means you have to instantiate that class and then call that method:

$post = new Post();
$msg=$post->add($title,$subtitle,$details,$_FILES['_postImage']);